Please help question 16 please Thank you 1 The valence elect

Please help question 1-6 please, Thank you!

1. The valence electrons are located in the ____________ orbitals of an atom.

2. Positive ions are formed by the ____ of electrons, while negative ions are formed by the ____ of electrons.

3.

Identify the charge of the metal ion in each of the following

Al₂S₃

CoSO₄

AgCl

VS₃

NiO

Mn₃(PO₄)₅

+3

+2

+1

+6

+5

+7

-1

-2

+4

-3

4. Electrons are shared in covalent compounds so that each atom has ____ electrons which satisfies the _____ rule.

5. The names of covalent compounds use _____ to state the nuber of atoms which is dervived from the _____ names. For example, 2 atoms would be identified as _____

6.

Polyatomic ions are ions that contain more than one ____________ in its formula.

atom

molecule

electron

ion

Solution

1.valence electrons are located in the orbitals of outermost orbit

2.An atom of an element is convert to positive ion by loss of electrons.

Na------------ Na+ + e-

An atom of an element is convert to negaive ionby gain of electrons

Cl + e- -------------- Cl-

3.

Al2S3------------- 2 Al+3 + 3 S-2

metal atom Al is exists as Al+3 (+3)= A

CoSO4 ------------ Co+2 + SO4-2

metal atom Co is exists as Co+2. (+2) =B

AgCl ------ Ag+ + Cl-

metal atom Ag exists as Ag+ ( +1)   = C

VS3--------- V+6 + S-2

metal atom exists as V+6 ( +6) = D

NiO---------- Ni+2 + O-2

metal atom exists as Ni+2 ( +2) =B

Mn3(PO4)5------------ Mn+5 + PO4-3

metal atom exists as Mn+5 (+5) =E

4,8 electons, octet ruel

5. Poly atomic ions contains morethan one atom in its formula

the answer is A.